Harrasment of pensioner by Edgars

After numerous calls to my pensioner mother, I spoke to a consult on the phone from Edgars on 16 May 2023 I told her my mom wants to settle the account and close it as she cannot afford it, she verified with my mom and said she will send an email to me which she did. The settlement was valid for 5 days, I rep**** with the proof of payment on 20 May 2023 (to edgarscollectioncentre.co.za) , no response, followed up on 26 May 2023 told matter escalated to ***, followed up with them on 28 June 2023 no response, followed up on 20 October 2023 told account now with ***/*** followed up on 23 October 2023, they advised that they did not receive a cancelation request from the clt even though it is on the trail. Now they started calling her again asking for R400 plus to settle the account, she will not pay that, I settled this account for her as per agreement, she's old and sick and I'm tired of edgars harrasing her over something I sorted out.